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经营范围
发明名称
CUTTING DRUMS FOR MINING MACHINES
摘要
申请公布号
GB2000539(B)
申请公布日期
1982.02.10
申请号
GB19780027670
申请日期
1978.06.22
申请人
WINSTER MINING LTD
发明人
分类号
E21C25/10;(IPC1-7):E21C25/10
主分类号
E21C25/10
代理机构
代理人
主权项
地址
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